diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 11:52:26 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 11:52:26 -0400 |
commit | ccaa36f73544163ef6e15eb29a620130755f6001 (patch) | |
tree | b5cf50592c45e25edbd66fea451e6941e455fa83 /arch/powerpc/sysdev | |
parent | b4a9071af62f95dc6d22040a0b37ac7225ce4d54 (diff) | |
parent | 5e980823581682d1566e7b5089cf827ddd5f3c94 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (29 commits)
[POWERPC] Fix rheap alignment problem
[POWERPC] Use check_legacy_ioport() for ISAPnP
[POWERPC] Avoid NULL pointer in gpio1_interrupt
[POWERPC] Enable generic rtc hook for the MPC8349 mITX
[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class
[POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot
[POWERPC] fix spin lock nesting in hvc_iseries
[POWERPC] EEH failure to mark pci slot as frozen.
[POWERPC] update powerpc defconfig files after libata kconfig breakage
[POWERPC] enable sysrq in pmac32_defconfig
[POWERPC] UPIO_TSI cleanup
[POWERPC] rewrite mkprep and mkbugboot in sane C
[POWERPC] maple/pci iomem annotations
[POWERPC] powerpc oprofile __user annotations
[POWERPC] cell spufs iomem annotations
[POWERPC] NULL noise removal: spufs
[POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c
[POWERPC] update mpc8349_itx_defconfig and remove some debug settings
[POWERPC] Always call cede in pseries dedicated idle loop
[POWERPC] Fix loop logic in irq_alloc_virt()
...
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r-- | arch/powerpc/sysdev/Makefile | 5 | ||||
-rw-r--r-- | arch/powerpc/sysdev/cpm2_common.c | 309 | ||||
-rw-r--r-- | arch/powerpc/sysdev/cpm2_pic.c | 256 | ||||
-rw-r--r-- | arch/powerpc/sysdev/cpm2_pic.h | 10 | ||||
-rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 281 | ||||
-rw-r--r-- | arch/powerpc/sysdev/fsl_soc.h | 2 |
6 files changed, 858 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index e5e999ea891a..f15f4d78aee9 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile | |||
@@ -17,3 +17,8 @@ ifeq ($(CONFIG_PPC_MERGE),y) | |||
17 | obj-$(CONFIG_PPC_I8259) += i8259.o | 17 | obj-$(CONFIG_PPC_I8259) += i8259.o |
18 | obj-$(CONFIG_PPC_83xx) += ipic.o | 18 | obj-$(CONFIG_PPC_83xx) += ipic.o |
19 | endif | 19 | endif |
20 | |||
21 | # Temporary hack until we have migrated to asm-powerpc | ||
22 | ifeq ($(ARCH),powerpc) | ||
23 | obj-$(CONFIG_CPM2) += cpm2_common.o cpm2_pic.o | ||
24 | endif | ||
diff --git a/arch/powerpc/sysdev/cpm2_common.c b/arch/powerpc/sysdev/cpm2_common.c new file mode 100644 index 000000000000..ec265995d5d8 --- /dev/null +++ b/arch/powerpc/sysdev/cpm2_common.c | |||
@@ -0,0 +1,309 @@ | |||
1 | /* | ||
2 | * General Purpose functions for the global management of the | ||
3 | * 8260 Communication Processor Module. | ||
4 | * Copyright (c) 1999-2001 Dan Malek <dan@embeddedalley.com> | ||
5 | * Copyright (c) 2000 MontaVista Software, Inc (source@mvista.com) | ||
6 | * 2.3.99 Updates | ||
7 | * | ||
8 | * 2006 (c) MontaVista Software, Inc. | ||
9 | * Vitaly Bordug <vbordug@ru.mvista.com> | ||
10 | * Merged to arch/powerpc from arch/ppc/syslib/cpm2_common.c | ||
11 | * | ||
12 | * This file is licensed under the terms of the GNU General Public License | ||
13 | * version 2. This program is licensed "as is" without any warranty of any | ||
14 | * kind, whether express or implied. | ||
15 | */ | ||
16 | |||
17 | /* | ||
18 | * | ||
19 | * In addition to the individual control of the communication | ||
20 | * channels, there are a few functions that globally affect the | ||
21 | * communication processor. | ||
22 | * | ||
23 | * Buffer descriptors must be allocated from the dual ported memory | ||
24 | * space. The allocator for that is here. When the communication | ||
25 | * process is reset, we reclaim the memory available. There is | ||
26 | * currently no deallocator for this memory. | ||
27 | */ | ||
28 | #include <linux/errno.h> | ||
29 | #include <linux/sched.h> | ||
30 | #include <linux/kernel.h> | ||
31 | #include <linux/param.h> | ||
32 | #include <linux/string.h> | ||
33 | #include <linux/mm.h> | ||
34 | #include <linux/interrupt.h> | ||
35 | #include <linux/module.h> | ||
36 | #include <asm/io.h> | ||
37 | #include <asm/irq.h> | ||
38 | #include <asm/mpc8260.h> | ||
39 | #include <asm/page.h> | ||
40 | #include <asm/pgtable.h> | ||
41 | #include <asm/cpm2.h> | ||
42 | #include <asm/rheap.h> | ||
43 | #include <asm/fs_pd.h> | ||
44 | |||
45 | #include <sysdev/fsl_soc.h> | ||
46 | |||
47 | static void cpm2_dpinit(void); | ||
48 | cpm_cpm2_t *cpmp; /* Pointer to comm processor space */ | ||
49 | |||
50 | /* We allocate this here because it is used almost exclusively for | ||
51 | * the communication processor devices. | ||
52 | */ | ||
53 | cpm2_map_t *cpm2_immr; | ||
54 | intctl_cpm2_t *cpm2_intctl; | ||
55 | |||
56 | #define CPM_MAP_SIZE (0x40000) /* 256k - the PQ3 reserve this amount | ||
57 | of space for CPM as it is larger | ||
58 | than on PQ2 */ | ||
59 | |||
60 | void | ||
61 | cpm2_reset(void) | ||
62 | { | ||
63 | cpm2_immr = (cpm2_map_t *)ioremap(CPM_MAP_ADDR, CPM_MAP_SIZE); | ||
64 | cpm2_intctl = cpm2_map(im_intctl); | ||
65 | |||
66 | /* Reclaim the DP memory for our use. | ||
67 | */ | ||
68 | cpm2_dpinit(); | ||
69 | |||
70 | /* Tell everyone where the comm processor resides. | ||
71 | */ | ||
72 | cpmp = &cpm2_immr->im_cpm; | ||
73 | } | ||
74 | |||
75 | /* Set a baud rate generator. This needs lots of work. There are | ||
76 | * eight BRGs, which can be connected to the CPM channels or output | ||
77 | * as clocks. The BRGs are in two different block of internal | ||
78 | * memory mapped space. | ||
79 | * The baud rate clock is the system clock divided by something. | ||
80 | * It was set up long ago during the initial boot phase and is | ||
81 | * is given to us. | ||
82 | * Baud rate clocks are zero-based in the driver code (as that maps | ||
83 | * to port numbers). Documentation uses 1-based numbering. | ||
84 | */ | ||
85 | #define BRG_INT_CLK (get_brgfreq()) | ||
86 | #define BRG_UART_CLK (BRG_INT_CLK/16) | ||
87 | |||
88 | /* This function is used by UARTS, or anything else that uses a 16x | ||
89 | * oversampled clock. | ||
90 | */ | ||
91 | void | ||
92 | cpm_setbrg(uint brg, uint rate) | ||
93 | { | ||
94 | volatile uint *bp; | ||
95 | |||
96 | /* This is good enough to get SMCs running..... | ||
97 | */ | ||
98 | if (brg < 4) { | ||
99 | bp = cpm2_map_size(im_brgc1, 16); | ||
100 | } else { | ||
101 | bp = cpm2_map_size(im_brgc5, 16); | ||
102 | brg -= 4; | ||
103 | } | ||
104 | bp += brg; | ||
105 | *bp = ((BRG_UART_CLK / rate) << 1) | CPM_BRG_EN; | ||
106 | |||
107 | cpm2_unmap(bp); | ||
108 | } | ||
109 | |||
110 | /* This function is used to set high speed synchronous baud rate | ||
111 | * clocks. | ||
112 | */ | ||
113 | void | ||
114 | cpm2_fastbrg(uint brg, uint rate, int div16) | ||
115 | { | ||
116 | volatile uint *bp; | ||
117 | |||
118 | if (brg < 4) { | ||
119 | bp = cpm2_map_size(im_brgc1, 16); | ||
120 | } | ||
121 | else { | ||
122 | bp = cpm2_map_size(im_brgc5, 16); | ||
123 | brg -= 4; | ||
124 | } | ||
125 | bp += brg; | ||
126 | *bp = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN; | ||
127 | if (div16) | ||
128 | *bp |= CPM_BRG_DIV16; | ||
129 | |||
130 | cpm2_unmap(bp); | ||
131 | } | ||
132 | |||
133 | int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode) | ||
134 | { | ||
135 | int ret = 0; | ||
136 | int shift; | ||
137 | int i, bits = 0; | ||
138 | cpmux_t *im_cpmux; | ||
139 | u32 *reg; | ||
140 | u32 mask = 7; | ||
141 | u8 clk_map [24][3] = { | ||
142 | {CPM_CLK_FCC1, CPM_BRG5, 0}, | ||
143 | {CPM_CLK_FCC1, CPM_BRG6, 1}, | ||
144 | {CPM_CLK_FCC1, CPM_BRG7, 2}, | ||
145 | {CPM_CLK_FCC1, CPM_BRG8, 3}, | ||
146 | {CPM_CLK_FCC1, CPM_CLK9, 4}, | ||
147 | {CPM_CLK_FCC1, CPM_CLK10, 5}, | ||
148 | {CPM_CLK_FCC1, CPM_CLK11, 6}, | ||
149 | {CPM_CLK_FCC1, CPM_CLK12, 7}, | ||
150 | {CPM_CLK_FCC2, CPM_BRG5, 0}, | ||
151 | {CPM_CLK_FCC2, CPM_BRG6, 1}, | ||
152 | {CPM_CLK_FCC2, CPM_BRG7, 2}, | ||
153 | {CPM_CLK_FCC2, CPM_BRG8, 3}, | ||
154 | {CPM_CLK_FCC2, CPM_CLK13, 4}, | ||
155 | {CPM_CLK_FCC2, CPM_CLK14, 5}, | ||
156 | {CPM_CLK_FCC2, CPM_CLK15, 6}, | ||
157 | {CPM_CLK_FCC2, CPM_CLK16, 7}, | ||
158 | {CPM_CLK_FCC3, CPM_BRG5, 0}, | ||
159 | {CPM_CLK_FCC3, CPM_BRG6, 1}, | ||
160 | {CPM_CLK_FCC3, CPM_BRG7, 2}, | ||
161 | {CPM_CLK_FCC3, CPM_BRG8, 3}, | ||
162 | {CPM_CLK_FCC3, CPM_CLK13, 4}, | ||
163 | {CPM_CLK_FCC3, CPM_CLK14, 5}, | ||
164 | {CPM_CLK_FCC3, CPM_CLK15, 6}, | ||
165 | {CPM_CLK_FCC3, CPM_CLK16, 7} | ||
166 | }; | ||
167 | |||
168 | im_cpmux = cpm2_map(im_cpmux); | ||
169 | |||
170 | switch (target) { | ||
171 | case CPM_CLK_SCC1: | ||
172 | reg = &im_cpmux->cmx_scr; | ||
173 | shift = 24; | ||
174 | case CPM_CLK_SCC2: | ||
175 | reg = &im_cpmux->cmx_scr; | ||
176 | shift = 16; | ||
177 | break; | ||
178 | case CPM_CLK_SCC3: | ||
179 | reg = &im_cpmux->cmx_scr; | ||
180 | shift = 8; | ||
181 | break; | ||
182 | case CPM_CLK_SCC4: | ||
183 | reg = &im_cpmux->cmx_scr; | ||
184 | shift = 0; | ||
185 | break; | ||
186 | case CPM_CLK_FCC1: | ||
187 | reg = &im_cpmux->cmx_fcr; | ||
188 | shift = 24; | ||
189 | break; | ||
190 | case CPM_CLK_FCC2: | ||
191 | reg = &im_cpmux->cmx_fcr; | ||
192 | shift = 16; | ||
193 | break; | ||
194 | case CPM_CLK_FCC3: | ||
195 | reg = &im_cpmux->cmx_fcr; | ||
196 | shift = 8; | ||
197 | break; | ||
198 | default: | ||
199 | printk(KERN_ERR "cpm2_clock_setup: invalid clock target\n"); | ||
200 | return -EINVAL; | ||
201 | } | ||
202 | |||
203 | if (mode == CPM_CLK_RX) | ||
204 | shift +=3; | ||
205 | |||
206 | for (i=0; i<24; i++) { | ||
207 | if (clk_map[i][0] == target && clk_map[i][1] == clock) { | ||
208 | bits = clk_map[i][2]; | ||
209 | break; | ||
210 | } | ||
211 | } | ||
212 | if (i == sizeof(clk_map)/3) | ||
213 | ret = -EINVAL; | ||
214 | |||
215 | bits <<= shift; | ||
216 | mask <<= shift; | ||
217 | out_be32(reg, (in_be32(reg) & ~mask) | bits); | ||
218 | |||
219 | cpm2_unmap(im_cpmux); | ||
220 | return ret; | ||
221 | } | ||
222 | |||
223 | /* | ||
224 | * dpalloc / dpfree bits. | ||
225 | */ | ||
226 | static spinlock_t cpm_dpmem_lock; | ||
227 | /* 16 blocks should be enough to satisfy all requests | ||
228 | * until the memory subsystem goes up... */ | ||
229 | static rh_block_t cpm_boot_dpmem_rh_block[16]; | ||
230 | static rh_info_t cpm_dpmem_info; | ||
231 | static u8* im_dprambase; | ||
232 | |||
233 | static void cpm2_dpinit(void) | ||
234 | { | ||
235 | spin_lock_init(&cpm_dpmem_lock); | ||
236 | |||
237 | im_dprambase = ioremap(CPM_MAP_ADDR, CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE); | ||
238 | |||
239 | /* initialize the info header */ | ||
240 | rh_init(&cpm_dpmem_info, 1, | ||
241 | sizeof(cpm_boot_dpmem_rh_block) / | ||
242 | sizeof(cpm_boot_dpmem_rh_block[0]), | ||
243 | cpm_boot_dpmem_rh_block); | ||
244 | |||
245 | /* Attach the usable dpmem area */ | ||
246 | /* XXX: This is actually crap. CPM_DATAONLY_BASE and | ||
247 | * CPM_DATAONLY_SIZE is only a subset of the available dpram. It | ||
248 | * varies with the processor and the microcode patches activated. | ||
249 | * But the following should be at least safe. | ||
250 | */ | ||
251 | rh_attach_region(&cpm_dpmem_info, (void *)CPM_DATAONLY_BASE, | ||
252 | CPM_DATAONLY_SIZE); | ||
253 | } | ||
254 | |||
255 | /* This function returns an index into the DPRAM area. | ||
256 | */ | ||
257 | uint cpm_dpalloc(uint size, uint align) | ||
258 | { | ||
259 | void *start; | ||
260 | unsigned long flags; | ||
261 | |||
262 | spin_lock_irqsave(&cpm_dpmem_lock, flags); | ||
263 | cpm_dpmem_info.alignment = align; | ||
264 | start = rh_alloc(&cpm_dpmem_info, size, "commproc"); | ||
265 | spin_unlock_irqrestore(&cpm_dpmem_lock, flags); | ||
266 | |||
267 | return (uint)start; | ||
268 | } | ||
269 | EXPORT_SYMBOL(cpm_dpalloc); | ||
270 | |||
271 | int cpm_dpfree(uint offset) | ||
272 | { | ||
273 | int ret; | ||
274 | unsigned long flags; | ||
275 | |||
276 | spin_lock_irqsave(&cpm_dpmem_lock, flags); | ||
277 | ret = rh_free(&cpm_dpmem_info, (void *)offset); | ||
278 | spin_unlock_irqrestore(&cpm_dpmem_lock, flags); | ||
279 | |||
280 | return ret; | ||
281 | } | ||
282 | EXPORT_SYMBOL(cpm_dpfree); | ||
283 | |||
284 | /* not sure if this is ever needed */ | ||
285 | uint cpm_dpalloc_fixed(uint offset, uint size, uint align) | ||
286 | { | ||
287 | void *start; | ||
288 | unsigned long flags; | ||
289 | |||
290 | spin_lock_irqsave(&cpm_dpmem_lock, flags); | ||
291 | cpm_dpmem_info.alignment = align; | ||
292 | start = rh_alloc_fixed(&cpm_dpmem_info, (void *)offset, size, "commproc"); | ||
293 | spin_unlock_irqrestore(&cpm_dpmem_lock, flags); | ||
294 | |||
295 | return (uint)start; | ||
296 | } | ||
297 | EXPORT_SYMBOL(cpm_dpalloc_fixed); | ||
298 | |||
299 | void cpm_dpdump(void) | ||
300 | { | ||
301 | rh_dump(&cpm_dpmem_info); | ||
302 | } | ||
303 | EXPORT_SYMBOL(cpm_dpdump); | ||
304 | |||
305 | void *cpm_dpram_addr(uint offset) | ||
306 | { | ||
307 | return (void *)(im_dprambase + offset); | ||
308 | } | ||
309 | EXPORT_SYMBOL(cpm_dpram_addr); | ||
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c new file mode 100644 index 000000000000..51752990f7b9 --- /dev/null +++ b/arch/powerpc/sysdev/cpm2_pic.c | |||
@@ -0,0 +1,256 @@ | |||
1 | /* | ||
2 | * Platform information definitions. | ||
3 | * | ||
4 | * Copied from arch/ppc/syslib/cpm2_pic.c with minor subsequent updates | ||
5 | * to make in work in arch/powerpc/. Original (c) belongs to Dan Malek. | ||
6 | * | ||
7 | * Author: Vitaly Bordug <vbordug@ru.mvista.com> | ||
8 | * | ||
9 | * 1999-2001 (c) Dan Malek <dan@embeddedalley.com> | ||
10 | * 2006 (c) MontaVista Software, Inc. | ||
11 | * | ||
12 | * This file is licensed under the terms of the GNU General Public License | ||
13 | * version 2. This program is licensed "as is" without any warranty of any | ||
14 | * kind, whether express or implied. | ||
15 | */ | ||
16 | |||
17 | /* The CPM2 internal interrupt controller. It is usually | ||
18 | * the only interrupt controller. | ||
19 | * There are two 32-bit registers (high/low) for up to 64 | ||
20 | * possible interrupts. | ||
21 | * | ||
22 | * Now, the fun starts.....Interrupt Numbers DO NOT MAP | ||
23 | * in a simple arithmetic fashion to mask or pending registers. | ||
24 | * That is, interrupt 4 does not map to bit position 4. | ||
25 | * We create two tables, indexed by vector number, to indicate | ||
26 | * which register to use and which bit in the register to use. | ||
27 | */ | ||
28 | |||
29 | #include <linux/stddef.h> | ||
30 | #include <linux/init.h> | ||
31 | #include <linux/sched.h> | ||
32 | #include <linux/signal.h> | ||
33 | #include <linux/irq.h> | ||
34 | |||
35 | #include <asm/immap_cpm2.h> | ||
36 | #include <asm/mpc8260.h> | ||
37 | #include <asm/io.h> | ||
38 | #include <asm/prom.h> | ||
39 | |||
40 | #include "cpm2_pic.h" | ||
41 | |||
42 | static struct device_node *cpm2_pic_node; | ||
43 | static struct irq_host *cpm2_pic_host; | ||
44 | #define NR_MASK_WORDS ((NR_IRQS + 31) / 32) | ||
45 | static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; | ||
46 | |||
47 | static const u_char irq_to_siureg[] = { | ||
48 | 1, 1, 1, 1, 1, 1, 1, 1, | ||
49 | 1, 1, 1, 1, 1, 1, 1, 1, | ||
50 | 0, 0, 0, 0, 0, 0, 0, 0, | ||
51 | 0, 0, 0, 0, 0, 0, 0, 0, | ||
52 | 1, 1, 1, 1, 1, 1, 1, 1, | ||
53 | 1, 1, 1, 1, 1, 1, 1, 1, | ||
54 | 0, 0, 0, 0, 0, 0, 0, 0, | ||
55 | 0, 0, 0, 0, 0, 0, 0, 0 | ||
56 | }; | ||
57 | |||
58 | /* bit numbers do not match the docs, these are precomputed so the bit for | ||
59 | * a given irq is (1 << irq_to_siubit[irq]) */ | ||
60 | static const u_char irq_to_siubit[] = { | ||
61 | 0, 15, 14, 13, 12, 11, 10, 9, | ||
62 | 8, 7, 6, 5, 4, 3, 2, 1, | ||
63 | 2, 1, 0, 14, 13, 12, 11, 10, | ||
64 | 9, 8, 7, 6, 5, 4, 3, 0, | ||
65 | 31, 30, 29, 28, 27, 26, 25, 24, | ||
66 | 23, 22, 21, 20, 19, 18, 17, 16, | ||
67 | 16, 17, 18, 19, 20, 21, 22, 23, | ||
68 | 24, 25, 26, 27, 28, 29, 30, 31, | ||
69 | }; | ||
70 | |||
71 | static void cpm2_mask_irq(unsigned int irq_nr) | ||
72 | { | ||
73 | int bit, word; | ||
74 | volatile uint *simr; | ||
75 | |||
76 | irq_nr -= CPM_IRQ_OFFSET; | ||
77 | |||
78 | bit = irq_to_siubit[irq_nr]; | ||
79 | word = irq_to_siureg[irq_nr]; | ||
80 | |||
81 | simr = &(cpm2_intctl->ic_simrh); | ||
82 | ppc_cached_irq_mask[word] &= ~(1 << bit); | ||
83 | simr[word] = ppc_cached_irq_mask[word]; | ||
84 | } | ||
85 | |||
86 | static void cpm2_unmask_irq(unsigned int irq_nr) | ||
87 | { | ||
88 | int bit, word; | ||
89 | volatile uint *simr; | ||
90 | |||
91 | irq_nr -= CPM_IRQ_OFFSET; | ||
92 | |||
93 | bit = irq_to_siubit[irq_nr]; | ||
94 | word = irq_to_siureg[irq_nr]; | ||
95 | |||
96 | simr = &(cpm2_intctl->ic_simrh); | ||
97 | ppc_cached_irq_mask[word] |= 1 << bit; | ||
98 | simr[word] = ppc_cached_irq_mask[word]; | ||
99 | } | ||
100 | |||
101 | static void cpm2_mask_and_ack(unsigned int irq_nr) | ||
102 | { | ||
103 | int bit, word; | ||
104 | volatile uint *simr, *sipnr; | ||
105 | |||
106 | irq_nr -= CPM_IRQ_OFFSET; | ||
107 | |||
108 | bit = irq_to_siubit[irq_nr]; | ||
109 | word = irq_to_siureg[irq_nr]; | ||
110 | |||
111 | simr = &(cpm2_intctl->ic_simrh); | ||
112 | sipnr = &(cpm2_intctl->ic_sipnrh); | ||
113 | ppc_cached_irq_mask[word] &= ~(1 << bit); | ||
114 | simr[word] = ppc_cached_irq_mask[word]; | ||
115 | sipnr[word] = 1 << bit; | ||
116 | } | ||
117 | |||
118 | static void cpm2_end_irq(unsigned int irq_nr) | ||
119 | { | ||
120 | int bit, word; | ||
121 | volatile uint *simr; | ||
122 | |||
123 | if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS)) | ||
124 | && irq_desc[irq_nr].action) { | ||
125 | |||
126 | irq_nr -= CPM_IRQ_OFFSET; | ||
127 | bit = irq_to_siubit[irq_nr]; | ||
128 | word = irq_to_siureg[irq_nr]; | ||
129 | |||
130 | simr = &(cpm2_intctl->ic_simrh); | ||
131 | ppc_cached_irq_mask[word] |= 1 << bit; | ||
132 | simr[word] = ppc_cached_irq_mask[word]; | ||
133 | /* | ||
134 | * Work around large numbers of spurious IRQs on PowerPC 82xx | ||
135 | * systems. | ||
136 | */ | ||
137 | mb(); | ||
138 | } | ||
139 | } | ||
140 | |||
141 | static struct irq_chip cpm2_pic = { | ||
142 | .typename = " CPM2 SIU ", | ||
143 | .enable = cpm2_unmask_irq, | ||
144 | .disable = cpm2_mask_irq, | ||
145 | .unmask = cpm2_unmask_irq, | ||
146 | .mask_ack = cpm2_mask_and_ack, | ||
147 | .end = cpm2_end_irq, | ||
148 | }; | ||
149 | |||
150 | int cpm2_get_irq(struct pt_regs *regs) | ||
151 | { | ||
152 | int irq; | ||
153 | unsigned long bits; | ||
154 | |||
155 | /* For CPM2, read the SIVEC register and shift the bits down | ||
156 | * to get the irq number. */ | ||
157 | bits = cpm2_intctl->ic_sivec; | ||
158 | irq = bits >> 26; | ||
159 | |||
160 | if (irq == 0) | ||
161 | return(-1); | ||
162 | return irq+CPM_IRQ_OFFSET; | ||
163 | } | ||
164 | |||
165 | static int cpm2_pic_host_match(struct irq_host *h, struct device_node *node) | ||
166 | { | ||
167 | return cpm2_pic_node == NULL || cpm2_pic_node == node; | ||
168 | } | ||
169 | |||
170 | static int cpm2_pic_host_map(struct irq_host *h, unsigned int virq, | ||
171 | irq_hw_number_t hw) | ||
172 | { | ||
173 | pr_debug("cpm2_pic_host_map(%d, 0x%lx)\n", virq, hw); | ||
174 | |||
175 | get_irq_desc(virq)->status |= IRQ_LEVEL; | ||
176 | set_irq_chip_and_handler(virq, &cpm2_pic, handle_level_irq); | ||
177 | return 0; | ||
178 | } | ||
179 | |||
180 | static void cpm2_host_unmap(struct irq_host *h, unsigned int virq) | ||
181 | { | ||
182 | /* Make sure irq is masked in hardware */ | ||
183 | cpm2_mask_irq(virq); | ||
184 | |||
185 | /* remove chip and handler */ | ||
186 | set_irq_chip_and_handler(virq, NULL, NULL); | ||
187 | } | ||
188 | |||
189 | static int cpm2_pic_host_xlate(struct irq_host *h, struct device_node *ct, | ||
190 | u32 *intspec, unsigned int intsize, | ||
191 | irq_hw_number_t *out_hwirq, unsigned int *out_flags) | ||
192 | { | ||
193 | static const unsigned char map_cpm2_senses[4] = { | ||
194 | IRQ_TYPE_LEVEL_LOW, | ||
195 | IRQ_TYPE_LEVEL_HIGH, | ||
196 | IRQ_TYPE_EDGE_FALLING, | ||
197 | IRQ_TYPE_EDGE_RISING, | ||
198 | }; | ||
199 | |||
200 | *out_hwirq = intspec[0]; | ||
201 | if (intsize > 1 && intspec[1] < 4) | ||
202 | *out_flags = map_cpm2_senses[intspec[1]]; | ||
203 | else | ||
204 | *out_flags = IRQ_TYPE_NONE; | ||
205 | |||
206 | return 0; | ||
207 | } | ||
208 | |||
209 | static struct irq_host_ops cpm2_pic_host_ops = { | ||
210 | .match = cpm2_pic_host_match, | ||
211 | .map = cpm2_pic_host_map, | ||
212 | .unmap = cpm2_host_unmap, | ||
213 | .xlate = cpm2_pic_host_xlate, | ||
214 | }; | ||
215 | |||
216 | void cpm2_pic_init(struct device_node *node) | ||
217 | { | ||
218 | int i; | ||
219 | |||
220 | /* Clear the CPM IRQ controller, in case it has any bits set | ||
221 | * from the bootloader | ||
222 | */ | ||
223 | |||
224 | /* Mask out everything */ | ||
225 | |||
226 | cpm2_intctl->ic_simrh = 0x00000000; | ||
227 | cpm2_intctl->ic_simrl = 0x00000000; | ||
228 | |||
229 | wmb(); | ||
230 | |||
231 | /* Ack everything */ | ||
232 | cpm2_intctl->ic_sipnrh = 0xffffffff; | ||
233 | cpm2_intctl->ic_sipnrl = 0xffffffff; | ||
234 | wmb(); | ||
235 | |||
236 | /* Dummy read of the vector */ | ||
237 | i = cpm2_intctl->ic_sivec; | ||
238 | rmb(); | ||
239 | |||
240 | /* Initialize the default interrupt mapping priorities, | ||
241 | * in case the boot rom changed something on us. | ||
242 | */ | ||
243 | cpm2_intctl->ic_sicr = 0; | ||
244 | cpm2_intctl->ic_scprrh = 0x05309770; | ||
245 | cpm2_intctl->ic_scprrl = 0x05309770; | ||
246 | |||
247 | /* create a legacy host */ | ||
248 | if (node) | ||
249 | cpm2_pic_node = of_node_get(node); | ||
250 | |||
251 | cpm2_pic_host = irq_alloc_host(IRQ_HOST_MAP_LINEAR, 64, &cpm2_pic_host_ops, 64); | ||
252 | if (cpm2_pic_host == NULL) { | ||
253 | printk(KERN_ERR "CPM2 PIC: failed to allocate irq host!\n"); | ||
254 | return; | ||
255 | } | ||
256 | } | ||
diff --git a/arch/powerpc/sysdev/cpm2_pic.h b/arch/powerpc/sysdev/cpm2_pic.h new file mode 100644 index 000000000000..d63e45d4df58 --- /dev/null +++ b/arch/powerpc/sysdev/cpm2_pic.h | |||
@@ -0,0 +1,10 @@ | |||
1 | #ifndef _PPC_KERNEL_CPM2_H | ||
2 | #define _PPC_KERNEL_CPM2_H | ||
3 | |||
4 | extern intctl_cpm2_t *cpm2_intctl; | ||
5 | |||
6 | extern int cpm2_get_irq(struct pt_regs *regs); | ||
7 | |||
8 | extern void cpm2_pic_init(struct device_node*); | ||
9 | |||
10 | #endif /* _PPC_KERNEL_CPM2_H */ | ||
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 92ba378b7990..022ed275ea68 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c | |||
@@ -3,6 +3,9 @@ | |||
3 | * | 3 | * |
4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | 4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) |
5 | * | 5 | * |
6 | * 2006 (c) MontaVista Software, Inc. | ||
7 | * Vitaly Bordug <vbordug@ru.mvista.com> | ||
8 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | 9 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License as published by the | 10 | * under the terms of the GNU General Public License as published by the |
8 | * Free Software Foundation; either version 2 of the License, or (at your | 11 | * Free Software Foundation; either version 2 of the License, or (at your |
@@ -20,15 +23,20 @@ | |||
20 | #include <linux/device.h> | 23 | #include <linux/device.h> |
21 | #include <linux/platform_device.h> | 24 | #include <linux/platform_device.h> |
22 | #include <linux/fsl_devices.h> | 25 | #include <linux/fsl_devices.h> |
26 | #include <linux/fs_enet_pd.h> | ||
27 | #include <linux/fs_uart_pd.h> | ||
23 | 28 | ||
24 | #include <asm/system.h> | 29 | #include <asm/system.h> |
25 | #include <asm/atomic.h> | 30 | #include <asm/atomic.h> |
26 | #include <asm/io.h> | 31 | #include <asm/io.h> |
27 | #include <asm/irq.h> | 32 | #include <asm/irq.h> |
33 | #include <asm/time.h> | ||
28 | #include <asm/prom.h> | 34 | #include <asm/prom.h> |
29 | #include <sysdev/fsl_soc.h> | 35 | #include <sysdev/fsl_soc.h> |
30 | #include <mm/mmu_decl.h> | 36 | #include <mm/mmu_decl.h> |
37 | #include <asm/cpm2.h> | ||
31 | 38 | ||
39 | extern void init_fcc_ioports(struct fs_platform_info*); | ||
32 | static phys_addr_t immrbase = -1; | 40 | static phys_addr_t immrbase = -1; |
33 | 41 | ||
34 | phys_addr_t get_immrbase(void) | 42 | phys_addr_t get_immrbase(void) |
@@ -42,7 +50,9 @@ phys_addr_t get_immrbase(void) | |||
42 | if (soc) { | 50 | if (soc) { |
43 | unsigned int size; | 51 | unsigned int size; |
44 | const void *prop = get_property(soc, "reg", &size); | 52 | const void *prop = get_property(soc, "reg", &size); |
45 | immrbase = of_translate_address(soc, prop); | 53 | |
54 | if (prop) | ||
55 | immrbase = of_translate_address(soc, prop); | ||
46 | of_node_put(soc); | 56 | of_node_put(soc); |
47 | }; | 57 | }; |
48 | 58 | ||
@@ -51,6 +61,59 @@ phys_addr_t get_immrbase(void) | |||
51 | 61 | ||
52 | EXPORT_SYMBOL(get_immrbase); | 62 | EXPORT_SYMBOL(get_immrbase); |
53 | 63 | ||
64 | #ifdef CONFIG_CPM2 | ||
65 | |||
66 | static u32 brgfreq = -1; | ||
67 | |||
68 | u32 get_brgfreq(void) | ||
69 | { | ||
70 | struct device_node *node; | ||
71 | |||
72 | if (brgfreq != -1) | ||
73 | return brgfreq; | ||
74 | |||
75 | node = of_find_node_by_type(NULL, "cpm"); | ||
76 | if (node) { | ||
77 | unsigned int size; | ||
78 | const unsigned int *prop = get_property(node, "brg-frequency", | ||
79 | &size); | ||
80 | |||
81 | if (prop) | ||
82 | brgfreq = *prop; | ||
83 | of_node_put(node); | ||
84 | }; | ||
85 | |||
86 | return brgfreq; | ||
87 | } | ||
88 | |||
89 | EXPORT_SYMBOL(get_brgfreq); | ||
90 | |||
91 | static u32 fs_baudrate = -1; | ||
92 | |||
93 | u32 get_baudrate(void) | ||
94 | { | ||
95 | struct device_node *node; | ||
96 | |||
97 | if (fs_baudrate != -1) | ||
98 | return fs_baudrate; | ||
99 | |||
100 | node = of_find_node_by_type(NULL, "serial"); | ||
101 | if (node) { | ||
102 | unsigned int size; | ||
103 | const unsigned int *prop = get_property(node, "current-speed", | ||
104 | &size); | ||
105 | |||
106 | if (prop) | ||
107 | fs_baudrate = *prop; | ||
108 | of_node_put(node); | ||
109 | }; | ||
110 | |||
111 | return fs_baudrate; | ||
112 | } | ||
113 | |||
114 | EXPORT_SYMBOL(get_baudrate); | ||
115 | #endif /* CONFIG_CPM2 */ | ||
116 | |||
54 | static int __init gfar_mdio_of_init(void) | 117 | static int __init gfar_mdio_of_init(void) |
55 | { | 118 | { |
56 | struct device_node *np; | 119 | struct device_node *np; |
@@ -85,8 +148,11 @@ static int __init gfar_mdio_of_init(void) | |||
85 | mdio_data.irq[k] = -1; | 148 | mdio_data.irq[k] = -1; |
86 | 149 | ||
87 | while ((child = of_get_next_child(np, child)) != NULL) { | 150 | while ((child = of_get_next_child(np, child)) != NULL) { |
88 | const u32 *id = get_property(child, "reg", NULL); | 151 | int irq = irq_of_parse_and_map(child, 0); |
89 | mdio_data.irq[*id] = irq_of_parse_and_map(child, 0); | 152 | if (irq != NO_IRQ) { |
153 | const u32 *id = get_property(child, "reg", NULL); | ||
154 | mdio_data.irq[*id] = irq; | ||
155 | } | ||
90 | } | 156 | } |
91 | 157 | ||
92 | ret = | 158 | ret = |
@@ -128,7 +194,7 @@ static int __init gfar_of_init(void) | |||
128 | const char *model; | 194 | const char *model; |
129 | const void *mac_addr; | 195 | const void *mac_addr; |
130 | const phandle *ph; | 196 | const phandle *ph; |
131 | int n_res = 1; | 197 | int n_res = 2; |
132 | 198 | ||
133 | memset(r, 0, sizeof(r)); | 199 | memset(r, 0, sizeof(r)); |
134 | memset(&gfar_data, 0, sizeof(gfar_data)); | 200 | memset(&gfar_data, 0, sizeof(gfar_data)); |
@@ -159,7 +225,7 @@ static int __init gfar_of_init(void) | |||
159 | 225 | ||
160 | gfar_dev = | 226 | gfar_dev = |
161 | platform_device_register_simple("fsl-gianfar", i, &r[0], | 227 | platform_device_register_simple("fsl-gianfar", i, &r[0], |
162 | n_res + 1); | 228 | n_res); |
163 | 229 | ||
164 | if (IS_ERR(gfar_dev)) { | 230 | if (IS_ERR(gfar_dev)) { |
165 | ret = PTR_ERR(gfar_dev); | 231 | ret = PTR_ERR(gfar_dev); |
@@ -478,3 +544,208 @@ err: | |||
478 | } | 544 | } |
479 | 545 | ||
480 | arch_initcall(fsl_usb_of_init); | 546 | arch_initcall(fsl_usb_of_init); |
547 | |||
548 | #ifdef CONFIG_CPM2 | ||
549 | |||
550 | static const char fcc_regs[] = "fcc_regs"; | ||
551 | static const char fcc_regs_c[] = "fcc_regs_c"; | ||
552 | static const char fcc_pram[] = "fcc_pram"; | ||
553 | static char bus_id[9][BUS_ID_SIZE]; | ||
554 | |||
555 | static int __init fs_enet_of_init(void) | ||
556 | { | ||
557 | struct device_node *np; | ||
558 | unsigned int i; | ||
559 | struct platform_device *fs_enet_dev; | ||
560 | struct resource res; | ||
561 | int ret; | ||
562 | |||
563 | for (np = NULL, i = 0; | ||
564 | (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL; | ||
565 | i++) { | ||
566 | struct resource r[4]; | ||
567 | struct device_node *phy, *mdio; | ||
568 | struct fs_platform_info fs_enet_data; | ||
569 | const unsigned int *id, *phy_addr; | ||
570 | const void *mac_addr; | ||
571 | const phandle *ph; | ||
572 | const char *model; | ||
573 | |||
574 | memset(r, 0, sizeof(r)); | ||
575 | memset(&fs_enet_data, 0, sizeof(fs_enet_data)); | ||
576 | |||
577 | ret = of_address_to_resource(np, 0, &r[0]); | ||
578 | if (ret) | ||
579 | goto err; | ||
580 | r[0].name = fcc_regs; | ||
581 | |||
582 | ret = of_address_to_resource(np, 1, &r[1]); | ||
583 | if (ret) | ||
584 | goto err; | ||
585 | r[1].name = fcc_pram; | ||
586 | |||
587 | ret = of_address_to_resource(np, 2, &r[2]); | ||
588 | if (ret) | ||
589 | goto err; | ||
590 | r[2].name = fcc_regs_c; | ||
591 | |||
592 | r[3].start = r[3].end = irq_of_parse_and_map(np, 0); | ||
593 | r[3].flags = IORESOURCE_IRQ; | ||
594 | |||
595 | fs_enet_dev = | ||
596 | platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4); | ||
597 | |||
598 | if (IS_ERR(fs_enet_dev)) { | ||
599 | ret = PTR_ERR(fs_enet_dev); | ||
600 | goto err; | ||
601 | } | ||
602 | |||
603 | model = get_property(np, "model", NULL); | ||
604 | if (model == NULL) { | ||
605 | ret = -ENODEV; | ||
606 | goto unreg; | ||
607 | } | ||
608 | |||
609 | mac_addr = get_property(np, "mac-address", NULL); | ||
610 | memcpy(fs_enet_data.macaddr, mac_addr, 6); | ||
611 | |||
612 | ph = get_property(np, "phy-handle", NULL); | ||
613 | phy = of_find_node_by_phandle(*ph); | ||
614 | |||
615 | if (phy == NULL) { | ||
616 | ret = -ENODEV; | ||
617 | goto unreg; | ||
618 | } | ||
619 | |||
620 | phy_addr = get_property(phy, "reg", NULL); | ||
621 | fs_enet_data.phy_addr = *phy_addr; | ||
622 | |||
623 | id = get_property(np, "device-id", NULL); | ||
624 | fs_enet_data.fs_no = *id; | ||
625 | strcpy(fs_enet_data.fs_type, model); | ||
626 | |||
627 | mdio = of_get_parent(phy); | ||
628 | ret = of_address_to_resource(mdio, 0, &res); | ||
629 | if (ret) { | ||
630 | of_node_put(phy); | ||
631 | of_node_put(mdio); | ||
632 | goto unreg; | ||
633 | } | ||
634 | |||
635 | fs_enet_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL)); | ||
636 | fs_enet_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL)); | ||
637 | |||
638 | if (strstr(model, "FCC")) { | ||
639 | int fcc_index = *id - 1; | ||
640 | |||
641 | fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0); | ||
642 | fs_enet_data.rx_ring = 32; | ||
643 | fs_enet_data.tx_ring = 32; | ||
644 | fs_enet_data.rx_copybreak = 240; | ||
645 | fs_enet_data.use_napi = 0; | ||
646 | fs_enet_data.napi_weight = 17; | ||
647 | fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index); | ||
648 | fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index); | ||
649 | fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index); | ||
650 | |||
651 | snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x", | ||
652 | (u32)res.start, fs_enet_data.phy_addr); | ||
653 | fs_enet_data.bus_id = (char*)&bus_id[(*id)]; | ||
654 | fs_enet_data.init_ioports = init_fcc_ioports; | ||
655 | } | ||
656 | |||
657 | of_node_put(phy); | ||
658 | of_node_put(mdio); | ||
659 | |||
660 | ret = platform_device_add_data(fs_enet_dev, &fs_enet_data, | ||
661 | sizeof(struct | ||
662 | fs_platform_info)); | ||
663 | if (ret) | ||
664 | goto unreg; | ||
665 | } | ||
666 | return 0; | ||
667 | |||
668 | unreg: | ||
669 | platform_device_unregister(fs_enet_dev); | ||
670 | err: | ||
671 | return ret; | ||
672 | } | ||
673 | |||
674 | arch_initcall(fs_enet_of_init); | ||
675 | |||
676 | static const char scc_regs[] = "regs"; | ||
677 | static const char scc_pram[] = "pram"; | ||
678 | |||
679 | static int __init cpm_uart_of_init(void) | ||
680 | { | ||
681 | struct device_node *np; | ||
682 | unsigned int i; | ||
683 | struct platform_device *cpm_uart_dev; | ||
684 | int ret; | ||
685 | |||
686 | for (np = NULL, i = 0; | ||
687 | (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL; | ||
688 | i++) { | ||
689 | struct resource r[3]; | ||
690 | struct fs_uart_platform_info cpm_uart_data; | ||
691 | const int *id; | ||
692 | const char *model; | ||
693 | |||
694 | memset(r, 0, sizeof(r)); | ||
695 | memset(&cpm_uart_data, 0, sizeof(cpm_uart_data)); | ||
696 | |||
697 | ret = of_address_to_resource(np, 0, &r[0]); | ||
698 | if (ret) | ||
699 | goto err; | ||
700 | |||
701 | r[0].name = scc_regs; | ||
702 | |||
703 | ret = of_address_to_resource(np, 1, &r[1]); | ||
704 | if (ret) | ||
705 | goto err; | ||
706 | r[1].name = scc_pram; | ||
707 | |||
708 | r[2].start = r[2].end = irq_of_parse_and_map(np, 0); | ||
709 | r[2].flags = IORESOURCE_IRQ; | ||
710 | |||
711 | cpm_uart_dev = | ||
712 | platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3); | ||
713 | |||
714 | if (IS_ERR(cpm_uart_dev)) { | ||
715 | ret = PTR_ERR(cpm_uart_dev); | ||
716 | goto err; | ||
717 | } | ||
718 | |||
719 | id = get_property(np, "device-id", NULL); | ||
720 | cpm_uart_data.fs_no = *id; | ||
721 | |||
722 | model = (char*)get_property(np, "model", NULL); | ||
723 | strcpy(cpm_uart_data.fs_type, model); | ||
724 | |||
725 | cpm_uart_data.uart_clk = ppc_proc_freq; | ||
726 | |||
727 | cpm_uart_data.tx_num_fifo = 4; | ||
728 | cpm_uart_data.tx_buf_size = 32; | ||
729 | cpm_uart_data.rx_num_fifo = 4; | ||
730 | cpm_uart_data.rx_buf_size = 32; | ||
731 | cpm_uart_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL)); | ||
732 | cpm_uart_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL)); | ||
733 | |||
734 | ret = | ||
735 | platform_device_add_data(cpm_uart_dev, &cpm_uart_data, | ||
736 | sizeof(struct | ||
737 | fs_uart_platform_info)); | ||
738 | if (ret) | ||
739 | goto unreg; | ||
740 | } | ||
741 | |||
742 | return 0; | ||
743 | |||
744 | unreg: | ||
745 | platform_device_unregister(cpm_uart_dev); | ||
746 | err: | ||
747 | return ret; | ||
748 | } | ||
749 | |||
750 | arch_initcall(cpm_uart_of_init); | ||
751 | #endif /* CONFIG_CPM2 */ | ||
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h index 5a3dd480d2fd..04e145b5fc32 100644 --- a/arch/powerpc/sysdev/fsl_soc.h +++ b/arch/powerpc/sysdev/fsl_soc.h | |||
@@ -5,6 +5,8 @@ | |||
5 | #include <asm/mmu.h> | 5 | #include <asm/mmu.h> |
6 | 6 | ||
7 | extern phys_addr_t get_immrbase(void); | 7 | extern phys_addr_t get_immrbase(void); |
8 | extern u32 get_brgfreq(void); | ||
9 | extern u32 get_baudrate(void); | ||
8 | 10 | ||
9 | #endif | 11 | #endif |
10 | #endif | 12 | #endif |